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In which STP state does a switch populate the MAC address table?LearningDisabledListeningBlocking

Question

In which STP state does a switch populate the MAC address table?LearningDisabledListeningBlocking

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Solution

A switch populates the MAC address table in the Learning state of the Spanning Tree Protocol (STP). Here's a step-by-step explanation:

  1. Blocking: In this initial state, the switch port is not part of the Spanning Tree. It doesn't send or receive data frames, and it doesn't learn MAC addresses.

  2. Listening: In this state, the switch port can participate in frame forwarding according to the Spanning Tree Protocol. However, it still doesn't learn MAC addresses.

  3. Learning: This is the state where the switch port learns MAC addresses and begins to populate the MAC address table. However, it still doesn't forward data frames.

  4. Forwarding: In this final state, the switch port sends and receives data frames, continues to learn MAC addresses, and forwards data based on the MAC address table.

So, the Learning state is where the MAC address table starts to be populated.

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